Question
Pipe ‘A’ takes 15 minutes to fill a tank. Pipe
‘B’ takes 25 minutes to empty the same tank. If pipe ‘B’ is opened 11 minutes after pipe ‘A’, then find the total time taken to fill the tank in this manner.Solution
Let the capacity of the tank be ‘75’ litres {LCM (15, 25)} Efficiency of pipe ‘A’ = (75/15) = 5 litres/minute Efficiency of pipe ‘B’ = (75/15) = 3 litres/minute Quantity of water filled by pipe ‘A’ in 11 minutes = 11 × 5 = 55 litres Quantity of water to be filled = 75 – 55 = 20 litres Time taken by pipe ‘A’ and ‘B’ together to fill 20 litres of water = {20/(5 – 3)} = 10 minutes Total time taken = 11 + 10 = 21 minutes
Which missile system is known as the world’s fastest supersonic cruise missile and was mentioned in the Lucknow facility inauguration?
In April, RBI imposed a monetary penalty of Rs 36 lakh on ____________ for non-compliance with certain directions of the central bank?
- What is the currency of Uruguay?
What was the theme of Good Governance Week 2021?
Who among the following Mauryan kings turned to Buddhism and its tenet of nonviolence after the Kalinga war?
Recently National Stock Exchange Academy, has collaborated with________, to offer training programmes on future technologies?
- Which vaccine has been permitted by DAHD for use against Bird Flu outbreaks in India?
Which of the following is not a pollution-caused disease?
The fourth LEADS (Logistics Ease Across Different States) 2022 report unveiled by the ministry of ________.
Under Atma-nirbhar Bharat initiative of the Government, recently BSNL has launched which of the following service?
Relevant for Exams:
